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Schema DDL Linking record types
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m:n relationship between two record types (many-to-many relationship)
An m:n relationship is a relationship in which a member record can be associated with more
than one owner record.
If m:n relationships are to be represented, they have to be broken down into two 1:n relation-
ships. To this purpose a new record type (auxiliary record type) has to be defined which acts
as member record type. After the relationship has been resolved, each member record has
an owner.
Example of an m:n relationship
An example of an m:n relationship is the relationship between orders and articles.
An order can refer to several articles, an article can be referred to in several orders.